siddharthteotia commented on code in PR #9064:
URL: https://github.com/apache/pinot/pull/9064#discussion_r927806617
##########
pinot-query-runtime/src/main/java/org/apache/pinot/query/runtime/QueryRunner.java:
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@@ -101,25 +107,72 @@ public void processQuery(DistributedStagePlan
distributedStagePlan, ExecutorServ
BaseDataBlock dataBlock;
try {
DataTable dataTable = _serverExecutor.processQuery(serverQueryRequest,
executorService, null);
- // this works because default DataTableImplV3 will have a version
number at beginning,
- // which maps to ROW type of version 3.
- dataBlock =
DataBlockUtils.getDataBlock(ByteBuffer.wrap(dataTable.toBytes()));
+ if (!dataTable.getExceptions().isEmpty()) {
+ // if contains exception, directly return a metadata block with the
exceptions.
+ dataBlock =
DataBlockUtils.getErrorDataBlock(dataTable.getExceptions());
+ } else {
+ // this works because default DataTableImplV3 will have a version
number at beginning:
+ // the new DataBlock encodes lower 16 bites as version and upper 16
bites as type (ROW, COLUMNAR, METADATA)
Review Comment:
(nit) s/bites/bits ?
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